Forcing a cache refresh for a page?

[eluser]coldclimate[/eluser]
Hi,
I spent an hour last night chasing a bug that turned out not to be a bug, just a page which was caching (at my request) and thus showing me results I had deleted.

Is it possible to force a page that is cashed to be refreshed? Output caching is a different business to using memcache/squid/varnish etc, but for the life of me I can't find a £this->output->force_refresh() or equivalent.

Cheers,
Oli